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%I #4 Feb 17 2013 17:08:24
%S 5,63,498,20340,271141,16985929,286125939,20743320247,373691424190,
%T 27882988244881,509605326368069,38307687628079400,703184052898346968,
%U 52999539133762131621,974700127061083249468,73589121388228405830161
%N Number of nX5 0..3 arrays with no more than floor(nX5/2) elements unequal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..3 order
%C Column 5 of A222378
%H R. H. Hardin, <a href="/A222376/b222376.txt">Table of n, a(n) for n = 1..21</a>
%e Some solutions for n=4
%e ..0..0..0..0..1....0..0..1..0..2....0..0..0..1..2....0..0..1..1..1
%e ..0..0..0..1..1....0..0..3..0..1....0..0..0..1..0....0..1..1..1..1
%e ..0..0..2..0..1....0..0..0..0..0....0..0..0..0..1....0..2..1..1..1
%e ..0..0..0..1..1....0..0..0..0..0....0..0..0..0..2....0..2..1..1..1
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 17 2013